REPAIRS AND CLEANING OF SEWAGE LINES, MANHOLE, INSPECTION CHAMBER AND ALLIED WORKS IN TECH AREA AND OFFICERS ENCLAVE AT 20 WING UNDER GE AF BAGDOGRA

Amount

Cleaning of septic tank/ soak well/ manhole etc completely ( including de sludging and de watering) of solid and liquid sludge by pumbing or mechanically means from inside the tank including spreading of bleaching powder stable having concentration of minimum chlorine content 65% Grade -I quality and removal of sludge to a distance not exc 250 meters and depositing into excavated pti of appropriate size as directed and filled up with earth in each layer of 30cm thick complete all as specified and as directed. Note: The quantity of solid sludge shall only be measured and paid. The cost of pumping liquid sludge etc shall deemed to be included in the quoted rate.

Cleaning of blocked sewage line of 150 mm bore of pipe by rodding with using steel rod or split bamboo stick thoroughly from inspection chamber to manhole or from both sides between manhole to manhole or from manhole to septic tank of any depth till clear flow of sewage line is observed complete all as specified and as directed.

All as per Item No 2 here in above, but 200 mm bore pipe complete all as specified and as directed.

Manual excavation in trenches not exc. 1.5m wide and not exc 1.5m in depth for foundation or for taking out or laying pipe lines etc and getting out in soft/loose soil complete all as specified and as directed.

Dismantling and breaking up drain pipes (Salt glazed stone ware or concrete) of 150mm dia (Internal), set in cement mortar including taking out from trenches if required with demolition of concrete bed and removing from the site complete all as specified and as directed.

All as per Item No 5 here in above, but 100mm dia (Internal), complete all as specified and as directed.

M & L for PCC (1:3:6), type C-2 (using 40mm graded stone aggregates) as in concrete bed to drain pipes including packing under and haunching against the side of pipes after they are laid, jointed and tested for 150mm bore of pipe lines complete all as specified and as directed

All as per Item No 7 here in above, but for 100mm bore of pipe lines complete all as specified and as directed

M & L for Salt glazed stone ware (SGSW) drain pipe, 150mm dia (Internal), grade ‘A’ laid in trenches and jointed including testing complete all as specified and as directed.

All as per Item No 9 here in above, but 100mm dia (Internal), complete all as specified and as directed.

Removing excavated materials (Soils) to a distance not exc. 50m and depositing where directed at a level not exc. 1.5m above the starting point complete all as specified and as directed.

Returning, filling in,soft/loose soil, including spreading, levelling, watering and well ramming in layers not exc 25 cm complete all as specified and as directed.

Demolition of cement concrete (un reinforced) of any description and in any position not otherwise specifically provided for complete all as specified and as directed.

M&L for plain cement concrete (1:2:4) type B-0 (using 12.5mm graded stone aggregates) as in surface channel/benching of manholes including necessary form work as required complete all as specified and as directed.

Dismantling of Cast iron drain pipes of 100 mm bore, jointed in cement mortar including taking out from trenches if required including separating serviceable pipes and setting asides for use complete all as specified and as directed.

All as per Item No 15 above, but 75 mm bore complete all as specified and as directed.

Supply, laying, jointing and testing 100mm bore Cast iron (sand cast) soil/waste/vent pipes(ISI Marked), any length with or with out ear, with cement joints (1:1) , fixed to walls with suitable size clamps, nuts bolts etc complete all as specified and as directed

All as per Item No 17 above, but 75mm bore complete all as specified and as directed

Laying, jointing and testing 100mm bore Cast iron (sand cast) soil/waste/vent pipes, any length with or with out ear, with cement joints (1:1), fixed to walls with suitable size clamps, nuts bolts etc (old serviceable pipes obtained from dismantling is reused after cleaning of pipe lines) complete all as specified and as directed.

All as per Item No 19 above, but 75mm bore complete all as specified and as directed.

Cutting 100 mm bore salt glazed stone ware drain pipe in position including jointing socket end of new pipe to same with pocket super yarn and cement mortar 1:1. complete all as specifed and directed.

All as per Item No 21 above, but 150 mm bore complete all as specifed and directed.

S&F in repairs, 100 mm bore cast iron bend with oval access door complete incl cement mortar joint 1:1. complete all as specifed and directed.

All as per Item No 23 above, but 75 mm bore .complete all as specifed and directed.

S&F in repairs, 100 mm bore cast iron bend complete incl cement mortar joint 1:1. complete all as specifed and directed.

All as per Item No 25 here in above, but 75 mm bore .complete all as specifed and directed.

S & F in repairs, 75mm bore cast iron branch pieces, single (equal or unequal),ordinary or inverted (spigot or socket type) or with parallel branches with oval acess door complete including cement mortar joint 1:1 complete all as specifed and directed..

All as per Item No 27 above,but 100mm bore complete all as specifed and directed..

S & F in repairs, cast iron floor trap 75 mm dia out let including jointing to waste pipe fixed in cement concrete 1:2:4 complete all as specifed and directed.

Demolition of Brickwork or stone/boulder masonry, built in cement mortar including all quoins, arches, pillars,etc, but excluding ashlar facings, dressed stonework and precast concrete articles complete all as specifed and directed.

M&L for brickwork with fly ash old size bricks, straight or curved on plan exc 6m mean radius, built in cement mortar 1:4 complete all as specifed and directed.

M & L for brickwork with fly ash old size bricks, straight or curved on plan to any radius in half brick thick walls, built in cement mortar 1:4 complete all as specified and as directed.

Taking down cement plaster of any description on brick or stone walls etc including racking out joints, hacking for key, scrubbing down with water etc complete all as specified and as directed.

M&L for rendering 15mm thick cement plaster in cement mortar 1:4 on fair faces of brick work or concrete surfaces, finished even and smooth without using extra cement complete all as specified and as directed.

M&L for preparation of newly plastered or un plastered surfaces of walls including cornices, pilasters etc and applying two coats of cement base paint over a coat of alkali resistant priming paint complete all as specified and as directed

All as per Item No 35 here in above, but three coats of white wash on walls complete all as specifed and directed..

Taking down chowkhat or frame with shutter (without taking off shutter from the frame) area not exc 1.5 Sqm each and removing from the site including making good the disturbed surfaces of wall etc to match with existing adjoining surfaces complete all as specified and as directed

S&F Solid PVC door frame of size 50mm x 45mm made out of 5mm plain colour PVC sheet reinforced with M.S. square tube, suppling & fixing in opening as per specification & drawing complete all as specified and as directed..

S&F Factory made solid panel PVC door shutter 30mm thick (style) consisting of frame made out of M.S. tubes for top & bottom rails, M.S. frame shall be covered with heat moulded plain colour PVC `C' channel heaving a PVC sheet strip of 20mm width stuck inside with solvent cement for stiles and plain colour PVC sheets for top rail, lock rail & bottom rail on either side & as gap insert for top rail & bottom rail; Panelling of plain colour PVC sheet to be fitted in the MS frame welded/sealed to the stiles & rails suitable PVC sheet beading, and jointed together with solvent cement , supplying & fixing in the frame at site as per specification & drawing complete all as specified and as directed.

S&F for 100mm long Stainless steel butt hinges, medium weight, cold rolled complete all as specified and directed.

S&F 150mm long extruded aluminium alloy handles, fabricated type anodised complete all as specified and directed.

S&F 300mm long aluminium alloy anodised sliding door bolt with hasp and staple (bolt type) and fixing with complete accessories all as specified and directed.

S&F aluminium anodised barrel tower bolt of extruded section 200mm long complete all as specified and directed.

Demolition of Precast RCC cover slab of any description and in any position including separating serviceable reinforcement bars and setting aside for reuse complete all as specified and as directed.

M&L for Precast RCC (1:2:4) type B-1 using 20mm graded stone aggregates as in cover slab, set in cement mortar (1:6) complete all as specified and as directed.

S&F 10 mm dia and over Thermo mechanically treated (TMT) bars, cut to length, bent to shape required including cranking, hooking ends and binding with and including Mild steel wire (annealed) not less than 0.90 mm dia complete all as specified and as directed.

S&F in repairs, Vitreous china, Sqatting pan, 'Orissa Pattern', size 580 mm x 440 mm white, with integral foot rests (excluding flushing cistern and flush pipe) and including 100mm bore ‘P’ or ‘S’ trap and provision of cement concrete bedding and connected to existing flush pipe complete all as specified and as directed.

S&F in repairs, 10 Ltrs capacity PVC valveless, syphonic action type, flushing cisterm, low level, white, with inlet, ball valve, float and handle including brackets complete all as specified and directed.

S&F in repairs, vitreous china Wash hand basin, white , flat back size 550 x 400 mm excluding tabs but including brackets, CP waste coupling complete all as specifed and directed.

S&F in repairs,Vitreous China bowl urinal flat back, size of 465 x 355 x 265 mm white (minimum), with grating and union for discharge pipe (excluding flushing cistern, flush pipe and waste pipe), complete including providing and fixing plugs, bedding urinal against wall in cement mortar 1:2, securing urinal to plugs with and including 60mm long brass screws, pointing around urinal back in cement; fixing automatic flushing cistern with brackets, flush pipe, grating and Union for discharge pipe complete all as specified and directed.

S&F in repairs, vitreous china wash down water closet pan (pedestal pattern) white including connection to drain (or outgoing pipe) and to flush pipe, antishonage pipe and Plastic water closet seat, black, closed pattern with flat bottom, and cover and mild steel chromium plated or aluminised hinging device etc complete all as specified and directed.

S&F in repairs, 32 mm bore PVC waste pipe for WHB/urinlas 600mm long with union etc complete all as specified and directed.

S& F in repairs, Plastic water closet seat, closed pattern with flat bottom, and cover and mild steel chromium plated or aluminised hinging device etc complete all as specified and directed.

S&F in repairs, Salt glazed stone ware (SGSW) gully trap ‘P’ type, 150x150mm size complete all as specified and as directed

Dismantling floor hearth or wall tiling including cement mortar bedding (but not backing), and rubbish to the premises complete all as specified and as directed..

M & L for Non - skid Ceramic tiles 7 to 8 mm thick (square/rectangular) area of each tile exceeding 0.11 sqm but not exceeding 0.18 sqm, in floors etc. set and jointed in neat cement slurry and pointed in white or coloured cement to match and including 15mm thick screed bed in CM 1:6, set, jointed in neat cement slurry and pointed in white or coloured cement to match complete all as specifed and directed.

M&L for glazed ceramic coloured tiles in vertical surface 350 x 250 x 7 mm or 450 x 350 x 7 mm thick with matching highlighter laid over and including 10 mm thick rendering in cement mortar 1:3 set and jointed in neat cement slurry and pointed in white or colour cement to match the tiles complete all as specified and directed.

M&L for glazed ceramic coloured tiles in vertical surface 300x200x 7 mm thick laid over and including 10 mm thick rendering in cement mortar 1:3 set set and jointed in neat cement slurry and pointed in white or colour cement to match the tiles complete all as specified and directed.

S&F repairs, for 110mm bore PVC (SWR) pipes single socketed in any length with rubber ring joints fixed to walls complete all as specifed and directed.

All as per Item No 59 above, but 75 mm bore .complete all as specifed and directed.

S&F PVC (SWR) vent cowl 110mm bore complete all as specifed and directed.

All as per Item No 61 above, but 75 mm bore .complete all as specifed and directed.

S&F PVC (SWR) Bend radius any radius 110mm bore complete all as specifed and directed.

All as per Item No 63 above, but 75 mm bore .complete all as specifed and directed.

M&L for cleaning of blocked WCs, bath, urinals, WHBs etc. by attending the complaints of Officers Mess enclave area for day to day maintenance by way of cleaning desludging foreign materials as well as rodding of sewer line and keeping sewer line functional entering from floor trap, water closet, soil waste pipe, gully trap etc upto first manhole with necessary T&P complete all as specified and directed. (Note: Contractor should attend emergency complaints even after working hours including sundays and holidays if found necessary).

NOTES :- 1. The amount of schedule of credit shall be deducted from the total of this BOQ for arriving at contract sum. 2. Unless otherwise specified the rates for PCC shall deemed to include the cost of formwork shuttering etc., required for complete and proper execution of the work. Refer Schedule A notes for details.

HALDER ENTERPRISERS

RABI BANIK

M/S SUNNY ENTERPRISE

M/S MANAS MITRA

SUNIL DAS AND CO

SHRI P P SHARMA

M/S Banerjee construction co